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Parameter rigid actions of the Heisenberg groups

Published online by Cambridge University Press:  01 December 2007

NATHAN M. DOS SANTOS
NATHAN M. DOS SANTOS*
Affiliation:
Instituto de Matemática, Universidade Federal Fluminense, 24020-005, Niterói, RJ, Brazil (email: santosnathan@bol.com.br)
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Abstract

A locally free action of a Lie group is parameter rigid if for each other action with the same orbit foliation there exists a orbit-preserving diffeomorphism which conjugates the action to a reparametrization of the other by an automorphism of the Lie group. We show that for actions of the Heisenberg groups, if the first leafwise cohomology group of the orbit foliation is isomorphic to the first cohomology of the Lie algebra of the group, then the action is parameter rigid. Using this, we give examples of parameter rigid actions for all of the Heisenberg groups.

Type
Research Article
Information
Ergodic Theory and Dynamical Systems , Volume 27 , Issue 6 , December 2007 , pp. 1719 - 1735
Copyright
Copyright © Cambridge University Press 2007

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